As with any car the first 3 things to consider are condition, condition, and condition.

In this case, how much rust in the cab (if none visible, how was it repaired) and is the chop well done, or crappy, and hidden by gallons of filler? Is the bed savable? Again, rust repair done or needed? And with p/u beds, how many dingleberries are there? Usually those are small stretch points, the more there are, the longer and harder it is to repair if you want straight panels. Repops are available, but if you have to replace most of it, then it's worth close to nothing.

To my viewpoint this is basically a pile of parts and should be valued accordingly. If that low end tube axle isn't what you're going to use, then it's only worth what you can resell it for, typically half or less of new price, depending on demand (and geographical markets, some parts of the country some stuff will be worth more, or less). So, here are some high points. If the cab is decent it might be worth somewhere $15-2000. Bed, if nice say $500. Frame, ballpark $200. Rear axle, maybe $75-100. The grille shell $100-150 if not too many cracks/dents. Radiator, not much unless it's something like an unused Walker, otherwise scrap metal value. The ralley wheels might be of value to the muscle car crowd if they are originals with the proper factory markings, but you'd have to research that or get feedback from someone knowledgable about those...........I haven't paid attention to that stuff for over 10 years. Does it have a matching title? Depending on how much trouble it is to acquire a title in Va. a title by itself costs $250-350, or whatever the state titling hoops cost to do without a title. Add up all the probable used value, then discount 25-50 percent for taking it off his hands as a package deal. That would get you to just about what the cab alone, or plus the title value, is worth coincidentally, the rest being value to reimburse you for your trouble.